<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form action="/login" method="post">
        用户名:<input type="text" name="username"><br>
        密码:<input type="password" name="password"><br>
        <button type="submit">提交</button>
    </form>
    <h2 th:text="${message}"></h2>
</body>
</html>
